If you're using Marlin, I know the G42 command will do this. I think the syntax is G42 P{pin number} S{value} I'm not 100% sure the range of values because I know the same command can be used both for digital pins (range 0-1) and PWM pins (range 0-255). I always tell people trying to do this to be aware of the current limitations of the Arduino. I know the Mega has more capacity than the stanby jbernardis - RAMPS Electronics
Thanks. Did you build your own cables from shielded stock, or did you shield the cable you already had? I'm trying to find a good source of shielded wraps, but they are a bit pricey. I don't want to drop too much money only to find that it does't help.by jbernardis - Firmware - mainstream and related support
You should add a "G92 E0" to the front of your gcode. This resets the E axis (extruder) back to 0. The first E axis movement in your file is "G1 E0" but who knows where E is when you start your print. If you've been doing manual extrudes to make sure the extruder is primed, each time you press that button, you advance the E axis. then when you do the G1 E0, it thinks it needs to erewind the Eby jbernardis - Skeinforge
I built an LCD control panel for my prusa, sourcing my own parts, but generally following the instructions for the panelolu over at thingiverse. It worked great except that periodically the display would start to display garbage characters. You could still make out what was intended to be on screen, but it would be interspersed with strange looking characters. Sometimes the display would go toby jbernardis - Firmware - mainstream and related support
90 to 100 mm is all I got out of my prusa too, and especially on the right side I got less because the motor, as you said, hits the frame. I was never happy with this limitation, so I built a new frame with a different design.by jbernardis - General Mendel Topics
Also, don't connect or disconnect the motor while the driver is under power. I have a couple of "souvenirs" from doing just that.by jbernardis - Reprappers
I''m not sure how you created your object, but you can try repairing the stl file with netfabb hereby jbernardis - Slic3r
I got mine from speedymetals.com. I asked for a quote for 230mm x 230mm x 6mm plate and they quoted me $10. Of course it cost another $10 to ship it.by jbernardis - General Mendel Topics
I have a 25 mm fan attached to my carriage. I had to print a small adaptor part to connect to the 40 mm holes.by jbernardis - General Mendel Topics
For some reason my RAMPS did not power my arduino. The diode was inserted properly, I just never saw voltage on the pin. I just tapped off the input connector from the power supply - a short (~ 4 inches) wire with a DC plug on the end. I just had to make sure I had proper polarity, but it works great.by jbernardis - Reprappers
What is the extrusion amount immediately before 1.71317? Is the 2.71317? If so then this is the proper code for 1mm of retraction. The code you write with the -1 would only work with relative distances specified; most people let this default to absolute distances. Also, the g92 is not really necessary for retraction. The code could have not done the reset, and just continued on with valuesby jbernardis - Slic3r
Eeprom is not always enabled. If you download your own marlin firmware, you need to explicitly enable eeprom or the m500 command will be silently ignored and settings will not be saved.by jbernardis - Slic3r
Also, make sure of your connections - both the screw terminals at the ramps board AND the solder joint on the bed itself. I had a similar issue and the problem was the soldering. Also, did you wire in an led, and if so what resistor value did you use. Check for shorts her where you soldered. I'm not sure what the correct value should be, but 1.5 ohms sounds low.by jbernardis - Reprappers
I'm not at my PC at the moment to check the exact directory, and I'm talking about skeinforge, not sfact, but I think its skeinforge/skeinforge_application/alterations. I think there might also be a personal alterations directory beneath your home directory, but I'm not certain of that.by jbernardis - Skeinforge
do you have an end.gcode file that it's including? That's the only other place I can think of.by jbernardis - Skeinforge
Check your alterations plugin to see if you have "remove redundant code" checked. This will cause this to happen. See here.by jbernardis - Skeinforge
I also just discovered, as printman says above, that if you try to slice a file by saying: slic3r --datadir /yoursettingsdirectory filename.stl -o filename.gcode that it totally ignores the datadir option and slices your file with default settings. The only way I could get it to work was to use the --load option three times, each one specifying a different subdirectory for the preset files (prby jbernardis - Slic3r
I'm not sure what is powered from which rail, but I know the heated bed is powered from the larger of the 2. SO if you're only applying power to the 5 amp rail, there's your problem. The heated bed, with its small resistance, draws a lot of power, anywhere on the order of 10-12 amps.by jbernardis - Firmware - mainstream and related support
The issue is that most people slice through pronterface or some similar host program, and the advertised way of working with those programs is to construct a command line that uses the --load option to provide an ini file. This is a monolithic ini file. The newer versions of slic3r support 2 methods of storing configuration files - the monolithic files, and the newer preset mechanism that breakby jbernardis - Slic3r
Yes that's true, but its all managed by the ramps. The ramps has two power rails and you should be making two separate connections from your power supply. I'm not sure which rail is used for what, but the power supply connected to the ramps should provide power to your bed. What power supply are you using?by jbernardis - Firmware - mainstream and related support
The issue with that is that if you try to save your config, it just writes it to the normal configuration path. If you want to save to an alternate location, you need to export your settings and navigate to that directory and then say yes to the overwrite prompt. Then when you exit the program, it still thinks you haven't saved your changes, so it prompts you to make sure you want to exit - so yby jbernardis - Slic3r
It doesn't sound like a software issue to me. It sounds like an issue with your controller board - either a faulty component, or a bad or missing solder joint. What are you using for your controller? And did it come pre-assembled or did you solder it yourself?by jbernardis - Firmware - mainstream and related support
That is a sad excuse for a hobbed bolt. My bolt actually has a groove about 1.5mm deep. Yours appears to be totally flat. What keeps the filament aligned with the hobbing? I'd bet that your filament is drifting from side to side, and when it disengages from the hobbing it stops moving. Get yourself a better hobbed bolt, or perhaps like you said a grooved bearing, and I'll bet you see an imprby jbernardis - General Mendel Topics
I think I might finally be a convert. Very early on in my reprap history, I had an issue with slic3r unable to slice a simple object, so I moved over to skeinforge and it just worked for me. I listened to everybody praise slic3r, but I was very happy staying with skeinforge. I tried to move back to slic3r a couple of times, the most recent being 0.9.7, but every time the print results were verby jbernardis - Slic3r
Absolutely that bearing should be turning. Perhaps the hinge was not printed with enough clearance for the bearing to turn?? Might be time for some creative filing to loosen it up a bit.by jbernardis - General Mendel Topics
Scad files are read with openscad - Google it, download it and learn to use it. Almost everything I design to print I design in openscad.by jbernardis - General Mendel Topics
I would think the mendel90 type design would easily accommodate a longer y axis. The x axis could be lengthened too, but IMHO it would be easier to extend the y. BTW, here is a link to the oversized bed. This is on eBay, but there might be others.by jbernardis - General Mendel Topics
In my searches for parts, I saw at least one oversized bed. It looked just like the red mk2, except it was 200x400 rather than 200x200. I couldn't tell you if it was meant to be larger in the x or y axis. In either event, telling the firmware about the bed dimensions is a piece of cake.by jbernardis - General Mendel Topics
It's not a good idea to connect a motor directly to the arduino. The arduino has limited current capacity, plus the possible current induced by the motor when it starts up or shuts off can damage the arduino. A simple circuit based on a single transistor is a much safer way to go.by jbernardis - Reprappers
There is a setting in marlin to invert the axis. I had to do this for my X axis too when I switched x ends to one where the motor is between the two bars facing backwards instead of hanging off the rear facing forwards. It's an easy 1 line change in configuration.hby jbernardis - General Mendel Topics